Question
Determine the work done by a force in taking a particle along the curve
Answer :
Word Count : 132
Let's compute the work $W=\displaystyle\int_C \mathbf F\cdot d\mathbf r$ with $$ \mathbf F=(x+2y)\mathbf i+(x-y)\mathbf j,\quad x(t)=2\cos t,\; y(t)=4\sin t,\; t\in[0,\pi/4]. $$ First find $\mathbf r'(t)$: $$ \mathbf r'(t)=\big(-2\sin t\big)\mathbf i+(4\cos t)\mathbf j. $$ ____ _______ _____ ________ __________ _______ ___ ________.
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Let's compute the work $W=\displaystyle\int_C \mathbf F\cdot d\mathbf r$ with $$ \mathbf F=(x+2y)\mathbf i+(x-y)\mathbf j,\quad x(t)=2\cos t,\; y(t)=4\sin t,\; t\in[0,\pi/4]. $$ First find $\mathbf r'(t)$: $$ \mathbf r'(t)=\big(-2\sin t\big)\mathbf i+(4\cos t)\mathbf j. $$ ____ _______ _____ ________ __________ _______ ___ ________.
_______ ____ _________ _____ __________ ____ ______ _______.
_________ _________ __________ ______ _______ ____ ______ _________.
________ ______ _______ ___ __________ ________ __________ ___ _____ ___.
___ _______ ________ ____ _________ _____ ____.
__________ _________ ___ _______ _________ _______ __________ _______ ___ _________ _____ ___.
__________ _______ _____ ____ _________ ______ _____ _____ ____.
______ __________ _______ _______ ______ _________ _______.
__________ ______ _____ _______ ___ _________ _________.
_____ _________ _________ _________ ______.
__________ _________ _______ __________ _____ ___ _______ _________ _______ ________.
_________ _________ ______ ___ ____ _____ ________ ________.
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